How I smell food
I smell chocolate cake. The smell is really tiny bits that have broken
away from the cake and float in the air. The bits are called molecules.
The molecules are too small to see. But they can’t fool my nose.
Inside my nose are many hairlike nerves. When a smell enters my
nostrils, the nerves send the message to my brain. My brain tells me
what I smell.
My sense of smell also helps my body get ready to digest my food. When I
smell something good to eat, my brain sends messages to the glands that
make my saliva and stomach juices. My mouth waters and my stomach glands
start making their juices before I even chew my first bite.
